L#3
L#4
L#5
Critical questions
100

A change of matter without changing the kind of matter.

physical

or chemical

physical change

100

two or more kinds of matter combined together.

mixture.

100

An example of solid.



ice

100

When you cool water, it changes to ?

ice

water vapor

liquid.

ice

200

cutting paper with scissor

physical change.

200

how can you separate sand and water?

evaporation

200

what is combine

put together.

200

When air is cold, rain ……………….. a. freezes. b. melts. c. evaporates

freezes

300

baking bread

chemical change.

300

how can you separate salt and water?

by evaporation.

300

Materials have different properties (T or F)

true.

300

.When you boil water, it changes to…………….. 

a. ice. b. water vapor. c. liquid water

water vapor.

400

burning wood

chemical change

400

you can't separate the parts of mixture.

false.

400

the volume of liquid  stays ____________when it is poured into different containers                              

same

400

When air is warm, ice ………………… 

a. freezes. b. melts. c. Evaporates

melts.

500

what is matter?

anything that takes up space and has mass.

500

a fruit salad is a mixture of different fruits. (T OR F)

true.

500

what is evaporation?

liquid to gas.

500

When water vapor touches a cold surface, it changes to……… 

a. liquid. b. gas. c. solid

liquid.